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2001125
Cell Transportation
Descripción
Mapa Mental sobre Cell Transportation, creado por od008 el 10/02/2015.
Sin etiquetas
biology
bio
bio1
biology1
cell transport
unit 6
chapter 5
Mapa Mental por
od008
, actualizado hace más de 1 año
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Creado por
od008
hace más de 9 años
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Resumen del Recurso
Cell Transportation
Enzymes (Type 1)
Catalysts: Speeds up reactions without being used up themselves
Energy of Activation: the amount of energy the reactants must absorb to become activated and start a chemical reaction
Endergonic Reactions
Exergonic Reactions: a reaction that releases energy
Active Site: 3-D site that substrate will bind to
Substrate: molecule that binds with an enzyme, the reactant
Induced fit & Hydrolysis Reactions
Causes Entropy
First Law of Therodynamics
Energy cannot be created nor destroyed, only transformed or transferred
Second Law of Therodynamics
Energy conversions reduce the order of the universe and increase entropy
Entropy: the amount of disorder in a system
Competitive Inhibitors: blocks active site and active site becomes close
Incompetitive inhibitors: change the shape of the active site by binding at a different location
Imbedded in membrane
Phospholipid bilayer
Fluid Mosaic Model
Made of tails of lipids (hydrophobic) and the heads (hydrophilic) that attract water molecules
Enzymes
3 types of membrane proteins
Receptors
Transport
Passive Transport
Diffusion
Molecules always move from an area of [H] --> [L]
No ATP
Osmosis
The diffusion of water across a semipermeable membrane
No ATP
Facilitated Diffusion
Transport proteins may facilitate diffusion across membranes
No ATP
Active Transport
Endocytosis
Phagocytosis
cell eating
Pinocytosis
cell drinking
Receptor- mediated
Exocytosis
[L] --> [H]
Sodium Potassium Pump
Energy
Potential Energy
stored energy
Kinetic Energy
Energy in motion
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